. >> i'm standing in front of dennis's home. he lived in the past ten years. this is actually part of the hidden brook golf community in vallejo. this is where police found the body, she was actually 90 years old. that is after her 70-year-old son dennis convicted of double murder and rape back in the 'on 60s. he called police midday yesterday and said he had killed his mother. police responded to the how long on marshfield and found her remains on the property. he was paroled from soledad in 1990 he was sentenced to death for the murder of two pinole girls in 1966 but that was overturned in the 1970s. vallejo police knew he was in the knuichbt because he was required to check in with them as a sex parolee. >> he was cooperative with the officers he spoke with initially talking with communication supervisor. it took a lot for her to get it out of her. >> i'm shocked, but i'm not. it really took me back. i had trouble getting my breath. i knew something was going to happen. he such an evil person. i knew it. >> reporter: now, that was a family member of one of